package backtype.storm.topology;

import backtype.storm.tuple.Fields;

public interface OutputFieldsDeclarer {
	/**
	 * Uses default stream id.
	 */
	public void declare(Fields fields);

	public void declare(boolean direct, Fields fields);

	public void declareStream(String streamId, Fields fields);

	public void declareStream(String streamId, boolean direct, Fields fields);
}
